A 757 kg train car moving with a speed of 12.6 m/s to the

Last updated: 7/25/2022

A 757 kg train car moving with a speed of 12.6 m/s to the right, crashes into a 2nd 1269 kg train car moving with a speed of 3.8 m/s to the right. The trains lock up and move together. What is the speed of the combined train cars?